fix(Downloader.java): fix breakpoint resumes progress calculation error

Author: Justson

agentweb-download/src/main/java/com/just/agentweb/download/Downloader.java

@@ -230,8 +230,9 @@ private int doDownload() throws IOException {
 
 				final boolean isEncodingChunked = "chunked".equalsIgnoreCase(
 						mHttpURLConnection.getHeaderField("Transfer-Encoding"));
-				final boolean hasLength = ((this.mTotals = getHeaderFieldLong(mHttpURLConnection, "Content-Length")) == -1);
-				LogUtils.i(TAG, "content-length:" + this.mTotals);
+				long tmpLength = -1;
+				final boolean hasLength = ((tmpLength = getHeaderFieldLong(mHttpURLConnection, "Content-Length")) == -1);
+				LogUtils.i(TAG, "content-length:" + this.mTotals + "  code:" + mHttpURLConnection.getResponseCode() + " tmpLength:" + tmpLength);
 				// 获取不到文件长度
 				final boolean finishKnown = isEncodingChunked || hasLength;
 				if (finishKnown) {
@@ -250,6 +251,9 @@ private int doDownload() throws IOException {
 								new LoadingRandomAccessFile(mDownloadTask.getFile()),
 								false);
 					case HTTP_PARTIAL:
+						if (tmpLength + mDownloadTask.getFile().length() != this.mTotals) {
+							return ERROR_LOAD;
+						}
 						return transferData(mHttpURLConnection.getInputStream(),
 								new LoadingRandomAccessFile(mDownloadTask.getFile()),
 								true);

sample/src/main/java/com/just/agentweb/sample/fragment/AgentWebFragment.java

@@ -185,7 +185,7 @@ public boolean onStart(String url, String userAgent, String contentDisposition,
 					.setEnableIndicator(true)  // false 关闭进度通知
 					.addHeader("Cookie", "xx") // 自定义请求头
 					.setAutoOpen(true) // 下载完成自动打开
-					.setForceDownload(false); // 强制下载，不管网络网络类型
+					.setForceDownload(true); // 强制下载，不管网络网络类型
 			return false;
 		}
 
@@ -517,7 +517,7 @@ public boolean onMenuItemClick(MenuItem item) {
 				case R.id.error_website:
 					loadErrorWebSite();
 					// test DownloadingService
-	                /*LogUtils.i(TAG, " :" + mDownloadingService + "  " + (mDownloadingService == null ? "" : mDownloadingService.isShutdown()) + "  :" + mExtraService);
+		            /*LogUtils.i(TAG, " :" + mDownloadingService + "  " + (mDownloadingService == null ? "" : mDownloadingService.isShutdown()) + "  :" + mExtraService);
                     if (mDownloadingService != null && !mDownloadingService.isShutdown()) {
                         mExtraService = mDownloadingService.shutdownNow();
                         LogUtils.i(TAG, "mExtraService::" + mExtraService);